Metal-shaping machine



July 2,1929i c. A. mx 1,119,002

METAL SHAPING MACHINE Filed May 5, 1926 5 ShtS-Sheet 2 i l INVENTEIR Ar Imm Ef July 2, 1929. c. A.' mx 1.719.002

Y 1 METAL SHAPING MACHINE Filed May 5. 1926 5 Sheets5heet 3 ATTURNE Y Patented July 2, 1929.

CLARENCE A. DIX, F DETROIT, MICHIGAN.

METAL-SHAPING MACEIIIYI'E.`

'v'- Appleation 'leld` May 5,

This invention relates to meta-l refworkingmachinery.

rThis invention has utility when incorporated in apparatus 'for scaming, beading, or wiring in, an edge or edges of sheet material. l

Referring to the drawings: Fig. 1 is a side elevation, with parts broken away, of an embodiment ol the invention as a wiring-in machine;

Fi 2 is a fragmentary i'ront view of the machine of Fig. `1;

Fig. 8 is a view, in section, of the clutch connection 'for the macl'line showing the belt drive for the clutch instead ol. the gear operation as shown in Fig. 1;V

Fig. 4 is a section on the line IV-IV, Fig. 3; y

Fig. 5 a view ol the tirst roll pair drive and the adjustable moui'iting 'for the upper roll of said pair in the head ot the machine in a view from the right of Fig. 2 with the plate removed and other portions broken away;

Fig. 6 is a detail view oit the lock toggle device oli F ig. 5 -for the upper roll adjustment showing the toggle in collapsed position;

Fig. 7 is a section on the line VIL-V11, Fig. 5;

Fig. 8 is a plan view o1 the head oi the machine of Fig. 1, parts being broken away;

Fig. 9 is a detail View of the handle set 'for the upper roll of the first pair, being partially on the line IX-eIX, Fig. 1;

Fig. 10 is a view ot the head from the lett of Fig. 2, portions being broken away;

Fig. 11 is a fragmentary plan view of the head ot Fig. 8 with the working pairs angularly adjusted instead of being in the straight line as shown in Fig. 8;

Fig. 12 shows the assembly relation 'for the sheet material and the wire as adjacent the edge thereof as supplied to the first working pair in the device of this disclosure;

Fig. 13 shows the position of the stock as being handled aitter being acted upon by the first working pair with the sheet .edge turned to L-position;

Fig. 14- shows the stock as passing the second working pair with the sheet material given its bend back or 4lJ-'1orm in shape `for seaming, it' the wire were not used;

F 15 shows the condition o1 the work as acted upon by the third pair in closing ried by the column 2.

1926. Serial No. 106,919.

in the edge o1 the sheet material as turned in to form a bead for the sheet material;

Fig. 16 is a view from the left of the assembly in which the third roll pair is` not assembled, showing the second working pair;

F ig. 17 is a fragmentary plan view of the working pair of Fig. 16; i

Fig. I18 is a -front view of the working pair of Fig. 16 associated with the first working pair o1 rolls; and Fig. 19 is a detail ot the convex spiral tooth feature of the gears. y

Base 1 is shown as having thereon column 2 and bracket 3. Pedal 4 is pivotally 1nounted in the bracket 3 and has ar1n5 (Fie. 1) extending `for connection with upwar ly extending link 6 to arm 7 having fixed bearing 8 in bracket 9 as carried near the upper portion of the column 2. This c olumn 2, near its lower portion, has auxiliary bracket 1() mounting prime mover, as motor 11, having shaft 12carrying pinion 13 in mesh with gear 14 mounted on stud 15 car- Fixed with the gear 14 in this speed reduction transmission train, is pinion 16 in mesh with teeth 17 on wheel In the instance when it is not desired to have individual motor drive, the wheel 18 may have belt 'face 19 for belt drive (Figs. 3, 4) operation. This wheel 18 is provided with `anti-friction bearings 2O loosely mounting wheel 18 on hollow shaft 21` mounted by the column `2. This wheel 18 is provided with clutch :tace 22 into engagement with whichmay be thrown clutch member 23 also loosely mounted on the shaft 21. This clutch member 23 carries a pair of pins 24 which arereciprocable in openings of spider 25 fast with tubular shalt 21. On the opposite side from this clutch 22, 23, as to the wheel 18, this tubular shaft 21 carries pinion 26 fast therewith. As the pedal 4 is depressed, the upwardly extending link 6 is drawn downwardly so that upper balancing spring 27 (Fig. 1), as adjusted by collar 28, is compressed toward bracket 29 carried by the column 2, whilelower balancing spring 30, as adjusted by collar 31, on the link 6 is released. This movement of they` link 6 downward pulls the arm 7 downward on its bearing `8 to rock arm 32 away from the column 2. Arm 32 is provided with angular extension 32 positioned as to arm 7 by adjustingscrews 32. This serves to sev . Ininstances take up Wea-r in'clutch members 22, 23, and insures-the Working inunison of clutch memrbers 22, 23,V and toggle members 76, 77. This arm 32 is engaged between collars 33,

. 34, on stem 35 through the column 2 and the tubular shaft 21. Accordingly, this swinging of the arm 32 away from the column 2, pulls the stem 35 axially of the tubular shaft 21 so that transverse pin 36 carried" by the stem. 35 is operable in slot 37 of theV tubular shaft 2 1, and in' this operation engages the member 23,. to draw such member 23 as loosely mounted onthe tubular shaft 21,

axially ofthis shaft 21'- t'o bring theclutch rotation of pinionv 40 on shaft 41 mounted in bearings/42, 43, as the machine head on the c ol'ufn'1n2'.V j AThis bearingunitmember 42, 43,

hasextension 44 in which is removably mounted awork' supporting table 45 (Figs.

y whereinvit desired to rotatethe shaftll-ll (Fig. 1) slightly, as for adjusting position of" the gearing, or other purposes, or ev'enfor'doinga slight amount offworkother than by. power' drive, crank .46mayfbe mounted onkeyed end 470i this shaft `fThis.'shaft 41, adjacent thetable 4'5, is provided withrotatable reforming roll `48 hereingshown asgeifecting the first flang# ingor' upsetting operation; `'Adjacent this wvorlring'rollV 48 and' mounted' c'oaxially .with

this shaft V41, is gear 49 herein shown as spiralwith teeth convex, the convexity being frolnfa radius 50, less than the radius ofthe geafrl4'9. This shaft 41, between the bearings 412,143, has thereon pinion 51 in mesh with gear 52'on shaft" 53 approximately axially parallel with the'shaft 41.' Thisshaft 53 islcarried ,byY unitary member y54 providing bea-rings 55, 56," upon opposite sidesofv this pinion 52 for this shaft 53"(Fig. 5). Takeupjwa'shers 53 edoperate with' locknuts 53'. in holdingthe' shaft 53 fromlongitudinal play.fThis-fshaftf53 in opposing working relation `as to.the.working roll 48 carries eompanionworking rolfl`f'57, asthe upper roll offthisinitial-it-erminal1 roll pair of sheet f materialY edge. 're-working members.

The unitarygmember 54,l has upwardly of theipinion ,52recess `58,'-i1i Which ismounted i blockf59'-tliroigh Vwhich extends pivot' bolt fiov 6 '0,in.A providing a ,pivot bearing for this member j 54 inthe head .of ythis machine" comprising. upwardlyy extending portion 61 from theflbearings42, 43,' andilaterallyv thereof` a platef,62 ,asfan1opposite Vclosure member for housing this member 54.H This plate 62 is mounted on the machine head member 61 by bolts 63 and dowels 63'. The member may be adjusted as to its axis block 59 by slacking off set screw 64 and drawing up bolt'v 65 with setting'ot the nuts 66 thereon for positioning wedge face 67 ot' this bolt 65 against the block 59 for thus shifting member 54 on the axis 60 further away from the working roll 57. Converse operation of these adjustments will shift the roll 57 towardI the roll 48. These adjustments 64, 65, 66, may be locked for holding the parts in the set position.

)Vay 68 has coil spring 69 therein operating against plunger 70, abutting stop 71 fixed with the head61 so that there is (Fig. 5) an independent action in the throw down of the roll 57 toward the roll 48, as well as a normal tendency to hold s'uch rolls adjacent and take up any lost motion in the adjustment of such rolls toward each other. The actual throwing of this first roll pair 48, 57, into and out of operative position is effected by rocking shaft 72 which carries arm 73 trom which extends link 74 to pin 75 having pivotal connection with lower thrust member 76 and upper thrust member 77 of a toggle pair. This lower member 76 is'rockable in seat 78 of the member 54 adjacent the bearing 56. The upper toggle..

member 77 is roekable in bearing 7 9 of block 80 shiftablein guide 81 by wedge 82 as adjust-able by threaded device 83 having head 84 coacting with fork extension 85 from the. head 61of the machine. This wedge adjustment determines thel throw position et the roll 57 toward the roll 48, and as so thrown the toggle members 76, 77, are just beyond aligned position to set or self-lock as a toggle with abutting faces 86 affording stop coaction therefor. The adjust-ment of the wedge 82 determines to a nicety. the clear ance, while the buffer spring 69 takes up any lost motion and holds this toggle assembly in snug coacting relation.

The frame member 61 is provided with bearing extension 87 (Fig. 1) tor hinge pin 88' (Fig. 8). This hinge pin 88 has its axis approximate the axis of the radius 50 of the gear 49, with hinge pin 88 extending later` ally of and transversely of the general extent of the axes of the shafts 41, 53, as approximately parallel and disposed in a. vertical pl'ane. This means that frame 89 earried by hinge pin 88 has its axis such that there may be a very close, or short radius of turning as to the first working pair. and makes possible in the turning out ot work in the operation of this machine on a radius closely approximating that of the radius of the roller 57. This frame 89 carries lshoe 90 (Fig. 10) for holding the wire against shift-ing out of position and at ther angle as provided in the work. Additionally, this frame 89 carries (Fig. 2) roll 91 for effecting the return bend or folding back operation on the sheet material. This roll 91 is driven by cylindrical ii'aced spirally toothed gear 92 in mesh with the gear 119. The teeth of the gear t9 have extent transversely ol such gear 4:9 convex face. llo-wever, to take care of the shorter rad ius of the termini ot this convex lace oil this spiral gear 49, the projection portion of the Ateeth is narrowed toward the termini, while the space or recess portion is maintained constant throughout the transverse extent. This really strengthens the thinner tooth portions, as the ends ot the teeth terminate in most effective shrouds, which would not he in evidence were the teeth to extend straight across the face.

The gear 92 is mounted on shaft 93 in this member 89 carrying the second working pair. This shait upwardly extends to carry cylindrically faced spiral gear 94- in mesh with convex faced spiral gear 95, similar to `the convex faced gear This gear 95 (Fig. 10) is loosely mounted on trunnion 96 carried by frame 97 having coi'inectiou by hinge pin 98 with the frame 89. This gear 95 is in mesh with cylindrical faced spiral gear 99 fast with lower third win'kinej pair comprising roller 100, as the lower roll ot such pair, opposed by upper miller 101 rotatably mounted on extension 102 eccentric ot the trunnion 96. This iinal or follower,

as the terminal working pair oit these rolls. comprising the rolls 100, 101, el'l'ects the l'ioal reverse bending or bead forming for enclosing the wire in linishing the edge et the shoe' niaterial. i

Fast with the trunnion 9G is a gear 103 in mesh with segment 104 having ixed tulcrum 105 in the frame 97. Handle 10G uinvardly extends from this 'ulcrum 105 and is .fixed with the segment 1011. This handle 100 has a plunger 107 therein (Figs. 2, 10) which is depressed to release ratchet 108 'from .fixed quadrant 108 against the action oit spring 109. With the handle 106 thus free tor rocking, this trunnion 9G is rotated on an axis eccentric of the stud 102 so that the position of the upper roll 101 ot this follower roll pair may be changed as to the lower live roll 100 oit this pair. At the determined working position for the handle 10G, cam 10G is thrown thereagainst and backed by nut 10G, thus restricting the range ot `throw for the handle 10G. This may be an adjustment fory working operation to have the throw out operation independently of effecting the transmission connection or driving of the roll 100 for this rocking o' the trunnion 96 does not disturb the mesh relation ot the gear 95 with its driver 9-1 and the driving member 99. The angular relation of this third working pair as to the second pair may be angularly shifted on close or short a radius as that available bemounted on shaft 72.

tween the lirst and second working pair. The wire .may act as a pilot.

Accordingly, the relative angular shittings oit these three working pairs are adjusted automatically to the character ot work which it is desired to turn out by the edge configuration ot the work effective to hold the succeeding workin pairs as desired. The shoe 90 ot the second working pair is mounted with the traine 89 bythe stem 112 having crank 113 provided with handle 1111 so that this shoe 90 may be swung away from the work to allow the wire to coniie into position and then swing back to hold the wire into position at the return bend operation aS effected at the second working pair. The throw ot this crank 113 is limited by stop 118.

In placing the work initially at the .first working pair, such may be clamped in automatically with the depression et the pedal t. To this end, upwardly extending -from the arm 7 is link 115 (Fig. 1). `This link 115 is provided with spring 115', the tension o1 which is governed by screw 11.6. The olject of this spring 115 is that should any piece oil' stock be inserted in the machine, which was too heavy :in gage, or too hard in temper l'or the machineto work in safety, the spring will give, and thus toggles 76, 77, willnot operate, and rolls 419, 57, will. not be brought together. This link 115 eX- tends to short arm 117 tulcrunied on bolt 118 in plate 02. This arm 117 has lined therewith long arm 119 oi this lever loosely connected to arm 120 oil platev 121 loosely This plate 121 has recess 122engaged by pin 129 as normally thrust therein by spring 12st (Figs. 1, This pin 123 is in collar 125 havingkry connection 129 with this shatt 72. There is in the depression ot the pedal t, auch a rocking of the shait 72 as swings the arm 73 (Fig. 5) to throw the toggle 7G, 77, into position it'or its iaces 86 to abut and thereby autonmtically`lock the roll 57 into the clearance as determined by the wedge S2 as to the opposing roll 118 of the iirst working pair.

`Accordingly, in this mode ofi operation, the rolls 48, 57, at once begin te rotate tor feeding the work thro ugh the machine as these rolls approach each other in clamping Imsitiini as to the work. However, if it he desired to position the work before starting the machine, this is done bythe machine attendant operating handle 127. This handle 127 (Figs. 1, S, 9) is provided with cam faces 128, 129, extending trom recess 30, which recess 130 in normal `position oit the handle 127 is in registry with the recess 122 ot the plate 121, thus allowing the pin 1223 to have key connection with the pla-te 121. Howu ever, in this` oscillation ot the handle 127 relatively to the plate 121, this cam tace '128, inone direction, and this cam face 129,

in the opposite direction, engage shoulder 131on the pin 123 and thus operate such pin 123 against the resistance of spring 124 to withdraw such pinv 123 from the opening sheet of stock, as sheet metal. 132, may be placed to have its edge 133 in position towardv the gear 49 over the working roller 48. lVire 134 may be placed in position Vvunder the working roller 57 approximating the elearanceofthe inner side of' the working roll 57,'as a plane. This work may be placed in position and the clamping occur by the operation of the handle 127 to bring the `roll 57 down into position to direct the wire against the flange of the roll 48. As so operated' the depression of the pedal 4 connects the continuously operating motor 11 for a transmissiondrive in rotating the shafts 41, 53,.andV thus rotatingthe rolls 48, 57. In the event the operator does not initially place the Vso stock between the inactive rolls 48, 57, for elamping,'the positioning of t-he work at the operation of the pedal 4 may not only effect the 4driving of the rolls 48, 57,l but the simultaneous swinging of the roll 57 into the working position toward the roll 48 through the vaction of the link 115 and the lever 117, 118. Thework as passing this first live roll working pair is delivered to the second workingpair. The shoe may be rocked to hold the wire 134 into position as the roll 91 is effective for chan-ging the upstanding or L- portion 135 to a return bend portion 136 (Figs. 13, 14). Further progressV of this stock is to the third working pair, herein a vertical roll pairy comprising the live lower roll Y and the follower upper roll 101 wherein final bead bend 137 (Fig. 15) is effected about thev wire 134.

It is to be noted in this machine, that the driving connections are to the lower rolls of the rotary working pairs, or that the entire transmission is accordingly below the plane of the sheet stockasbeing operated upon, which means in any non-straight line shapes, there is ample clearance about the head of the machine for the excess stock even extending from the edge being finished.

` The short Yradius and convex face of the transmission gears permits short range of adjustment between thepairs so that short are curvatures may be worked effectively on the stock. The work may be clamped or released at any Working pair independently of e'ffecting the transmission at the second and third pair and independently of transmission starting at. thefirst pair. Besides this adjustment in the plane of the rolls to various curvatures or arcs, there is vertical are adjustment by shims or washers 138 placed about or removed from the hinge pins 88, 98. It is as important that the swinging members 89, 97, may have vertical adjustn'ient downwardly, from the plane ot working face of roll 48 as well as adjustment upwardly, and the removal of the washers, or shims, 138, allows .swinging members 89, 97, to float with the work, up or down. 'lhese members 89, 97, are accordingly provided with means for universally locating the adjustment of these members.

ln instances where the edge finish is to he merely a return bend as for seaming, the final roll pair may be left off and such structure is shown in Figs. 16, 17, 18. Herein the shoe 9() instead of beine swung outward on an axis, from within the frame 89 may be directly reeiprocated in and ont. '.lo this end, the frame 89 has its stem 112 provided with eccentric pin 139 engaging angle portion 14() from the shoe 90 so that crank 141 is provided with rocking handle 142, when such handle raised out of locking relation with toothed segment 143 such handle may then be swung outwardly and thus directly shift the shoe 90 out of working position.

that is claimed and it is desired to secure by United States Letters Patent is 1. A forming machine for an edge of sheet material comprising a plurality of vertical pairs of .forming members, a member of" each pair having a sheet material directing flange portion, said flange portions being in sequence for folding the sheet material back on itself, and rotatable driving means for the lower members of a plurality of said pairs.

2. A forming machine for an edge of sheet material comprising a plmality of vertical pairs of forming members, a member of each pair having a sheet material directing flange portion, said flange portions being in sequence for folding the sheet material back on itself, the upper rotatable members of said pairs being follower lnembers actuated from the lower members of said pairs, and rotatable driving means independent of the materialacted upon for a plurality of said lower members.

3. A forming machine for an edge of sheet material, comprising three pairs of forming members having stop means fixed therewith at approximately aligned position of the toggle, a rotatable member in each pair, and driving means independent of the material acted upon for each of said rotatable members.

4. A forming machine for an edge of sheet material comprising a pair of rolls forming therebetween a way for bending the sheet material as to an edge thereof, and means for adjusting one of said rolls relatively to the other comprising a toggle having stop means llt) first -pair including a shoe, and means for positioning -said shoe. f

2l.V Aiorming machine for the edge of sheet material comprising a plurality oii pairs of members includingl terminal pairs thereof, said terminall pairs being roll pairs, and means for adjusting the upper rolls of said -pairs upwardly'away from the lower rolls, whereby the material as acted upon may be supported independently of shifting during said adjusting of the upper rolls.

22. A forming machine for the edge of sheet material comprising a plurality of pairs of members including terminal pairs thereof, said terminal pairs being roll pairs, andmeans for adjusting the-upper roll of the follower terminalpair upwardly away from its lower roll, whereby the material as acted upon may be supported independently of shifting during said adjusting of the upper roll.

23. A forming machine for the edge of sheetmaterial comprising a lowerforming roll, an upper forming roll, vmeans for rotating both rolls, and an adjustable mounting permitting upward shitting of the upper roll away from the lower roll, whereby the material as acted upon may be supported independently ot' shifting during said adjust ling of the upper roll.

24. A forming machine for the edge of sheet material comprising a lower forming roll, an upper forming roll as a first pair, a second forming pair of members thereafter and a mounting for the `second pair adjustable for the working position below the first pair.

25. A orming machine for the edge of sheet material comprising a plurality of' working pairs of members, and adjustable spacing means for one member as to its-compamon pair member embodying a rock'rarm and means adjustable' for limiting the shift' ing of said arm.

26. A forming machine for an edge ot sheetmaterial comprising forming members including relatively angularly adjustable rolls determining a working path for the progress of the material along therebetween and driving mechanism for a plurality 0 said rolls below said working path.

27. A forming machine `for an edge of sheet material comprising a first pair of forming members, a mounting therefor, a second pair of forming members, a hinge pin mounting for the second pair ot forming members swingable as to the mounting for the first pair of `forming members, and shims on said pin.

28. A forming machine for an edge of sheet material comprising a plurality of pairs of forming members, mounting means for the members including a mounting for the'linal pair of said forming members embodying a hinge pin, and shims coacting with said pin.

29. A forming machine for the edge of sheet material comprising a lower forming roll, an upper forming roll as a first pair, a second forming pair of members thereafter, and a loose mounting for the second pair including means universally adjustable for locating the working position of the second pair as to the first pair.

30. A forming machine for the edge of sheet material comprising a lower forming roll, an upper forming roll as a tirst pair, a second forming pair of members thereafter, and averti ally loose mounting for the second pair including means horizontally swingable and vertically adjustable for locating the working position of the second pair as to the first pair.

31. A forming machine for the edge of sheet material comprising, in series, a lurality of pairs of working elements, sai( series terminating in terminal roll pairs of said elements, and rotatable driving means from one terminal pair to the other.

In witness whereof I attix my signature.

CLARENCE A. DIX.

CERTIFICATE 0in CORRECTICN..

Patent No. 1,719,002. Granted July 2, 1929, to

CLARENCE A. DIX.

it is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 4, line 103, claim 1, aiter the word "means" insert the Words "independently of the material acted upon"; same page, claim 3, line M9, beginning with the word "having" strike ont al1 to and including the word "toggle" line 121, and insert instead a member of each pair having a sheet material directing flange portion, said flange portions being in sequence for folding the sheet material back on itself"; and that the said Letters Patent should be read with these corrections therein that the same may conform to the reeord of the ease in the Patent Office.

Signed and sealed this 13th day of August, A, D. 1929.

Ni. J. Moore, (Seal) Acting Commissioner of Patents. 

